Solar intelligence
Browse SolarPel hub guides for solar ROI, system sizing, costs, incentives, batteries, panels, inverters, and net metering.
23 guides
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The best planning path is simple: understand your monthly energy use, estimate system size, compare payback assumptions, then decide whether battery backup belongs in the project scope.
Decide if solar panels are worth it by comparing electricity use, roof fit, utility rates, incentives, payback, quote quality, and ownership plans.
Estimate how many solar panels your home may need using monthly kWh, local sun, system losses, panel wattage, and roof fit.
Estimate battery size for critical home loads by listing watts, runtime, backup days, depth of discharge, and reserve margin.
Understand how net metering, net billing, export credits, fixed charges, and true-up rules affect solar savings, payback, and battery value.
Learn the difference between net metering and net billing, how each program credits exported solar electricity, and what the policy means for your solar savings, battery value, and long-term payback.
Understand solar battery capacity, power output, critical-load backup, whole-home backup, inverter compatibility, and battery economics.
Compare solar batteries by backup goal, usable capacity, kW output, critical loads, inverter compatibility, warranty terms, and quote assumptions.
Size a home solar battery from critical loads, runtime, backup days, usable capacity, inverter efficiency, and reserve margin.
Learn how to compare solar quotes by cash price, cost per watt, net cost, incentives, financing, batteries, electrical work, and production assumptions.
Learn how solar cost per watt works, what to include or exclude, and why batteries, roof work, financing, and incentives change comparisons.
Learn how solar tax credits, rebates, utility programs, ownership models, and documentation affect net cost, payback, and quote assumptions.
Learn how string inverters, microinverters, and power optimizers work, their advantages and disadvantages, warranty differences, and which option may be best for your home.
Compare solar inverter types, shade handling, clipping, monitoring, battery compatibility, serviceability, and quote questions.
Learn how solar panel degradation affects long-term production, ROI assumptions, warranties, and savings estimates over system life.
Understand solar panel product warranties, performance warranties, workmanship coverage, and the questions to ask before you sign.
Compare solar panels by wattage, efficiency, roof fit, degradation, warranty coverage, inverter design, and expected annual production.
Learn how to calculate solar payback period from net system cost, annual bill savings, export credits, incentives, financing, and battery assumptions.
Review solar proposals with a checklist for system size, equipment, production, incentives, financing, batteries, warranties, and assumptions.
A practical checklist for spotting missing assumptions, vague equipment, hidden financing costs, bundled add-ons, and unrealistic savings before signing a solar proposal.
Learn how to estimate solar ROI with net cost, annual bill savings, export-credit assumptions, financing, batteries, degradation, and conservative payback scenarios.
Use this solar-ready home checklist to organize utility bills, roof details, shade notes, goals, and quote questions before contacting installers.
Learn how to size a home solar system from monthly kWh use, peak sun hours, roof constraints, panel wattage, shading, future loads, and quote assumptions.
Learn why actual solar output can differ from estimates because of shade, weather, temperature, soiling, inverter limits, and assumptions.
Guide questions
Start with your electricity usage, then read the system sizing and payback guides before comparing installer quotes. If outages matter to you, add the battery guide after estimating your normal solar system size.
Solar guides explain the planning logic and assumptions. Solar calculators turn those assumptions into estimates for energy use, panel count, battery size, payback, and ROI.
No. SolarPel guides are educational planning resources. Final system design, incentives, financing, permitting, and electrical work should be verified with qualified local professionals.
Solar rules and costs change over time, so SolarPel content is reviewed when incentives, utility policies, equipment assumptions, or calculator methodology need updates.